We acknowledge the assistance of J.E. Sieczka. Dept. of Vegetable Crops for arrangements made in growing, harvesting, and transport- ing of the potatoes.
Effect of Magnesium Fertilizers on Total Glycoalkaloids and Nitrate-N in Katahdin Tubers
Article first published online: 25 AUG 2006
Journal of Food Science
Volume 50, Issue 2, pages 535–536, March 1985
How to Cite
MONDY, N. I. and PONNAWPALAM, R. (1985), Effect of Magnesium Fertilizers on Total Glycoalkaloids and Nitrate-N in Katahdin Tubers. Journal of Food Science, 50: 535–536. doi: 10.1111/j.1365-2621.1985.tb13446.x
- Issue published online: 25 AUG 2006
- Article first published online: 25 AUG 2006
- Ms reveived 7/13/84, revised 11/3/84, accepted 11/9/84
The effect of two sources of magnesium fertilization (56 kg/ha, MgO). ensom salt and dolomite. on total alvcoalkaloid (TGA) and nitrate-nitrogen (N03-N) content of Katahdin potatoes was examined. Both magnesium fertilizers increased the TGA and NOJ-N content of tubers. Tubers grown in soils receiving epsom salt had significantly (p < 0.05) higher TGA content than the tubers receiving dolomite immediately following harvest, but after 5 mo storage, no significant differences were observed between the two Mg sources. The NO3-N levels in tubers from plants receiving Mg fertilization were higher than the controls. Those receiving epsom salt were higher than those receiving dolomite. The N03-N levels decreased in all tubers after 5 mo storage. Cortex tissue was significantly (p < 0.05) higher in N03-N than the pith.